Tapcensus

Water quality for ZIP code 80543

ZIP 80543 covers Milliken, Greeley, Evans, and Johnstown in Weld County, Colorado, one of 35 ZIP codes in the county. 79 active public water systems serve the county; 39 had an EPA violation in the past three years.

Most likely your provider

Milliken Town of CO0162511 · Community water system · Surface water purchased
Serves 9,200 people Rules violated, past 3 years 2 Last sanitary survey Mar 15, 2023 Distance 1.4 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in Weld County

57 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Johnstown Town of
 27,295 1 5.4 mi
Greeley City of
 132,310 2 5.7 mi
Cave Creek
Evans		 1,025 0 5.7 mi
Gilcrest Town of
 1,150 0 6.3 mi
Evans City of
 19,369 2 7.9 mi
LA Salle Town of
 2,010 4 8.0 mi
Windsor Town of
 23,500 0 9.0 mi
Central Weld Cnty WD
 7,662 0 9.1 mi
Platteville Town of
 2,900 0 9.3 mi
Serenity Ridge Vault Connection
Berthoud		 157 0 10.4 mi
Severance Town of
 11,733 2 12.2 mi
Eaton Town of
 7,328 3 14.5 mi
Firestone Town of
 27,798 0 14.6 mi
Eagle Crest MHP
 441 0 14.7 mi
North Weld County WD
 15,890 0 14.9 mi
Kersey WD
 2,101 1 15.9 mi
Fox Hill Water Association INC
 44 0 15.9 mi
Ault Town of
 4,220 2 17.3 mi
Frederick Town of
 17,173 2 17.5 mi
Aristocrat Ranchette Water Project
 1,715 3 17.6 mi
FT Lupton City of
 12,099 3 18.7 mi
Dacono City of
 6,900 1 19.1 mi
Pierce Town of
 1,094 0 20.3 mi
New Vision MHP
 200 3 22.1 mi
Wattenberg Improvement Assoc
 350 1 22.2 mi
All 58 community water systems in Weld County
Non-community systems in Weld County (21: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Greeley RV Park South
 126 0 0
Salt & Acres
 158 3 0
RM INC
 52 0 0
Fourway Baptist Church
 45 0 0
Great Guns Sporting
 33 2 1
Tagawa Greenhouses INC
 250 1 0
Mountain States Jatc Training Facility
 100 0 0
Wild Animal Sanctuary the
 97 0 0
Roggen Motel
 27 0 0
Opal Foods LLC Roggen Farm
 27 0 0
Cardinal Community Academy
 120 0 0
Ceesi
 30 1 1
Briggsdale School
 194 1 0
Prairie Elem at New Raymer
 275 2 0
Peak Oilfield Services LLC
 150 3 1
Crow Valley Campground
 57 2 1
Stoneham Village
 51 2 0
Opal Foods LLC Hudson Farm
 49 2 2
Redtail Gas Plant
 48 0 0
Rocky Mountain Energy Center
 39 0 0
Shortgrass Steppe Campus
 30 1 0
About this data

Water systems are matched to Weld County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Colorado records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.